CMS's own filing for Oregon
Medicare Advantage plans in Oregon, by the numbers
What CMS published about Medicare enrollment in Oregon: 5 of 5 measures filed for this state, each one a field of the state's own row with the date the file was read.
- figures published by CMS
- 5
- counts CMS withheld
- 0
- the day this file was read
- 2026-09-11
Where Oregon sits among the states
54.3% of everyone with Medicare in Oregon is in a Medicare Advantage or other health plan rather than Original Medicare. That puts Oregon 15th of 51, between Kentucky above it and Pennsylvania below. Across the country the same figure runs from 62.8% in Michigan down to 3.0% in Alaska, so what counts as the ordinary choice depends on where a person lives, and this is what it is where they do.
Every measure CMS filed for Oregon
| Measure | What CMS published | Source |
|---|---|---|
| People with Medicare | In 2025, 962,060 people were enrolled in Medicare in Oregon. | CMS Medicare Monthly Enrollment, 2025 read September 2026 |
| In Medicare Advantage and other health plans | In 2025, 522,221 of them were in Medicare Advantage or another health plan rather than Original Medicare in Oregon (54.3% of everyone with Medicare in Oregon). | CMS Medicare Monthly Enrollment, 2025 read September 2026 |
| In Original Medicare | In 2025, 439,839 stayed in Original Medicare in Oregon (45.7% of everyone with Medicare in Oregon). | CMS Medicare Monthly Enrollment, 2025 read September 2026 |
| In a stand-alone Part D drug plan | In 2025, 285,969 bought drug coverage as a stand-alone Part D plan in Oregon (29.7% of everyone with Medicare in Oregon). | CMS Medicare Monthly Enrollment, 2025 read September 2026 |
| Also covered by Medicaid | In 2025, 169,976 were covered by Medicaid as well as Medicare in Oregon (17.7% of everyone with Medicare in Oregon). | CMS Medicare Monthly Enrollment, 2025 read September 2026 |
A withheld figure means CMS did not publish the count, never that the count is zero.
Cite or embed this figure
Oregon: 5 Medicare enrollment figures published by CMS and 0 counts withheld (Medicare Plan Comparison State Enrollment Index).
Cite as: "Medicare Plan Comparison State Enrollment Index: Oregon", updated 2026-09-11, https://medicareplancomparison.com/states/oregon/.
Download the Oregon figures (CSV), free to reuse with citation.